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Description

From scratch.

The SRAM XX Low Clamp Front Derailleur is not a triple chainring front derailleur. It's not a compact double front derailleur. It is its own thing.

And while it's designed to handle up to a 15-tooth differential between the big and little rings, its cage is shorter and narrower than a triple-specific front derailleur. This is great news for those who fear clearance between their rear suspension and their front derailleur. The aluminum links that shape the travel of the cage are extremely wide, increasing the distance between the pivots, for greater stiffness. The increase in stiffness plays to XX's superior gear-changing ability. The derailleur cage itself is made from steel for maximum durability.

SRAM claims the XX front derailleur will work on just about any bike. That's because they have both high and low clamp versions in four sizes each and four different direct mount versions (and there are three different clamps for each chain ring configuration within the direct mount line). Here's a PDF chart so you can determine exactly what you need. In addition, both the high- and low-clamp versions use a thin, flexible steel band clamp that holds quite well at relatively low clamping pressure -- a safe recipe for carbon fiber frames.

The SRAM XX Low Clamp Front Derailleur is available configured as either top or bottom pull. The 34.9 clamp size is adjustable and, with an included shim kit, can be used with frames that require a 31.8mm clamp.